Wringer release and reset mechanism



NOV. 23, 1937. l N. lETTEN 2,100,074'

WRINGER RELEASE AND RESET MECHANISM Filed Sept. 3', 1955 5 Sheets-Sheet 1 Nov. 23, 1937, N. l.. ETTEN 2,100,074

WRINGER RELEASE AND RESET MECHANISM Filed sept. s, '19:55 5 sheets-sheet 24 1 y lNVENTll-: y 55' 1 Ei 35 i 5o Y F15- 4 5 1, TTCJFENEYE Nov. 23, 193.7. N; l.. E'TTEN WRINGER RELEASE AND RESET MECHANISM -Filed sept. 5, 1935 5 Sheets-Sheet 3 Nov. 23, 1937. N. L. ETTEN A WRNGER RELEASE AND RESET MECHANISM Filed sept. s', 19:55 5 sheets-sheet 4 WVW- AT1-GENEVE Nov. 23, 1937. Nl ETTEN 2,100,074

' WRINGER RELEASE ANDRESET MECHANISM Filed Sept. 5, 1,935 5 Sheets-Sheet 5 MENTL- l WM .Zezza- Patented Nov. y23, 1937 UNITED STATES PATENT .OFFICE Nicholas L.

Etten, Waterloo, Iowa; assignor to Chamberlain Corporation, Waterloo, Iowa Application September 3, 1935, Serial No. 33,934 '2 Claims. (Cl. Gil-32) 'I'his invention has reference to wringer release and reset\ mechanisms, one of the objects of which is to provide novel means for locking `a wringer top frame upon a lower frame whereby to hold the wringer roll pressure means active to press the rolls together.

Another object is to provide a novel locking means as aforesaid, which locking means is instantly releasable to render the roll pressure means inactive.

A further object is to provide a locking means as aforesaid which is instantly releasable and includes mechanism by means of which, once released, the top frame is easily and quickly restored toits original locked position.

Y Other objects will appear inthe following description and accompanying drawings inwhich;

Fig. 1 is a side elevational view of a wringer embodying my invention;

Fig. 2 is an end view of the same;

Fig. 3 is a side elevational sectional view taken on line 3-3 in Fig. 5;l

Fig. 4 is a plan view taken line 4-#4 'in Fig. 1;

Fig. 5 is an end elevational view t 5 5 m Fig 1; .d aken on line Fig. 6 isa side elevational vie 5 6 m Fig. 5; l w taken on line Figs. '7, 8,' and 9 are fractional elevational views showing details of mechanism to be described.

Fig. 10 is a side elevationahview showing. parts approximately on vand movement of mechanism to be described;

Fig. 11 is a detail sectional view taken on lin II-IIin Fig. 13;

Fig. 12 is a detail sectional view similar to Fig; 11 showing certain parts in operated position;

- Fig. 13 is a fragmental sectional view taken on views respectively showing details of a part to be referred to;

-Figs. 19 and 20 are end and side elevational views respectively showing an associated part;'

and

Fig. 21 is an enlarged fragmental elevational view showing details of assembly of parts.

My invention is disclosed as embodied in a rolll wringer mechanism which includes a lower frame I0 having upright portions II- and I2 and @9no ventionaldrain board extensions I3.'

-walls of upright portions outwardly extending The frame structure includes a top frame member I4, valso bracket members I5for the purpose of attachment to a supporting structure not shown. l

In the lower frame are disposed upper and 5 lower rollers I6 and I'l, and a coupling mechanism I8 affords driving connection between the roll I1 and a power source not shown, through a gear I9 shown in dotted outline.

The top frame I4 carries a xture 20 and an 1o operating handle 2I which latter has connection lwith release and resetting mechanism disposed inside the top frame as will be explained.

Reference to Figs. 3, 4, 5, and 19 will disclose that top frame I4 is provided at both ends with l5 depending lugs 22 to which are attached xtures 23 including dual downwardly extending side portions 24 spaced apart so as to receive between them bearing blocks 25 made from im-.- pregnated woodsor any suitable bearing material. o

The bearing blocks are secured between the portions 24 by means of rivets 2B and carry the shaft of upper wringer roll I6. By the means described, the upper roll is supported in iixed relation to the upper frame I4. f 25 Journalled in openings `21 of portions 2l are transversely disposed shafts 28, which will be referred to later.

Attached to the inner surfaces of the outer II and I2 are fixtures 29 so (Figs. 17--18) which are made up to include parallel side portions joined by a connecting 'portion 3l. The sideportions are provided with 'outwardly diverted attachment extensions 32 and horizontal portions 33 from 35 which depend vertical attachment portions 3l.

The xtures 29- are secured to the frame up- -right portions by means of screws which pass through lugs 35 properly disposed on the upright walls to register with portions 32 and 3l of the 40 fixtures.

Slidably mounted in openings 36 of portions 33 are upright rod members 31 which have headed ortions 38 upon which transverse members-33 are supported.

Confined on rods 31 are coil springs '40 which rest lupon horizontal portions 33 of xtures 23 and react between .the latter and nuts 4I on the upper ends of the rods to resiliently forc mem- 5o ber 39 upwardly as will be apparent.

Referring to Fig. y5v transverse members 33 support bearing blocks '42. The blocks are slidably fsupported between upright guides 43 which extend outwardly from the inner walls of uprights u II and I2. The blocks carry the ends ofthe shaft of lower Iroll I1.

The foregoing will make apparent that the springs 40 are, through the mechanism described, capable of resiliently forcing the lower roll upwardly. 'I'he utility of this will be explained shortly. i

The top frame I4 is obviously made separable from the lower frame structure. It is adapted to rest upon upright portions II and I2 and its lower edges are so formed as to slightly overlap the upper edges of the end uprights so that the top frame is retained in proper register therewith.

'I'he relative positions of upright I2 and top frame Y I4 are clearly indicated in Fig. 2l.

Upper roller I6 is so disposed with respect to the top frame that when the latter rests upon the top of the uprights, the upper roll contacts the lower roll and holds the same in lowered position in opposition to the pressure of springs 49. 'I'he relative positions of the mechanism, when in lowered position, are shown in Fig. 5.

To force the top frame downwardly and hold` the same in the above ldescribed working position, I provide a mechanism as follows;

Shafts 28 have already been noted as being journalled in fixtures 23.

Referring to Fig. 6, it will be noted thatthe upper ends of side portions 30, of xture 29, are provided with recesses which have arcuate bottom portions 44, a tangent side 45 extending upwardly therefrom to the top of the fixture, an opposite tangent side 46 extending a short distance, the

line of which then diverts inwardly tojform a horizontal edge 41 thence on a vertical line to the top of the fixture.

As shown best in Figs. 6 and 21, the shafts 28 pass through the portions 38 of xtures 29 to lie in the recesses just described. At the points opposite the portions 30, the shafts are cut away so as to have half circle cross sections. The cut away portions are designated 28. The i'orml is also shown in Figs. 7 to 9.

The shafts are provided with gear teeth 48 which are engaged by rack bars 49, the inner ends of which are pivotally attached to studs 50 which are eccentrically mounted on an extending portion 59 of a member 5I of an actuating mechanism enclosed in the fixture 20.

Referring to Figs. 10 to 13, the actuating mechanlsm includes the operating handle 2| attached to a hub 52 which carries an afxed shaft 53 which extends Within the wall of the top frame.

Amxed to shaft 53 is a collar member 54 which has a lug portion 55, one side of which is cut away as shown in Figs. 14 and l5 to form upper and lower step portions 56 and 51.

The member 5I is rotatably confined on shaft 453 by means of a keeper ring 58. The studs 50 are disposed in diametrically opposite positions on a hub or boss portion 59. An enlarged flange portion 60 is fitted for rotation within the shell of xture 20 and carries a lug portion 6I.

A ring member 62 is disposed so as to be adjacent the inner surface of the ange 60 of member 5I.

Member 62 is provided with extending portions 63. The inner surface of fixture 20 is cut away to. receive the portions 63 in tight relationship so that the ring is firmly supported in the fixture.

The inner periphery of the ring 62 has a tooth portion 64.

Surrounding the body of member 64 is a coil spring 65 which has one end anchored in an opening 66 of th stationary ring 62 and its opposite end attached at 61 in member 54. l

Operation of the mechanism just described is as follows;

It has already been noted that xtures 29 are secured to the lower frame and that fixtures 23, carrying shafts 28, are secured to the top frame.

Fig. 9 illustrates that shaft 28 may be rotated to arrange the face 28 to permit free movement of shaft 28, and the top frame structure, upwardly whereby the top frame mechanism, including upper roll I6, may be removed from the lower frame.

Rotation of shaft 28 fin clockwise direction, Figs 7 to 9, brings about engagement of face 28' with portion 46 of fixture 29 as in Fig. 8, and continued rotation. eventually positions shaft 28 as shownA in Fig. '7. Obviously, during the rotation described the fixture 23, together with the top frame and upper roll I6, is moved'downwardly so as to force roll I6 against the lower roll I1 in opposition to springs 40 as has already been noted.

So long as the shaft 28 is held in the rotated position shown in Fig. 7, rolls I6 and I1 will be retained in pressure contact with the pressure of springs 49 applied at the upper edge of face 28 which rests somewhat off center as shown.

Upon release of shaft 28 it is free to rotate counterclockwise through the position of Fig. 8 to the position of Fig. 9. Springs 40 will obviously force such rotation by reason of the cam action between faces'46 and 28.

The function of rack bars 49, operated by the mechanism detailed in Figs. 10 to 16, will now become apparent.

With the parts disposed as shown in Fig. 10, wherein the shafts 28 are arranged in lholding position as in Fig. 7, th operating mechanism is arranged as in Fig. 11 with studs 60 rotated to the positions designated A and B.

The force of springs 40 obviously tends to rotate shafts 28 in the direction shown by the arrows, which would/normally rotate member 5I counter-clockwise in Fig. 10. Assuming that member 5I is prevented from rotating responsively to springs 40 it will be clear that the mechanism, once placed in the position shown, is capable of sustaining the wringer rolls in pressure relationship by the means above described.

The position of studs 50 shown inFig. 10 corresponds to the position of the operating mechanism shown Vin Fig. 11 wherein the portion 6I of member 5I rests against portion 64 ofthe stationary ring 62 and is thus prevented from rotating..

InV this position the forward edge of step 51, it lying under portion 64, rests against portion 6I at D and handle 2| lies in position C.

With the parts in above positions, it will be apparent that manipulation of handle 2| toward the position E will engage step 51 with portion 6I to rotate the latter, with studs 60, to position AF and BF'whereupon the pressure of springs 40 becomes active to force continued rotation of the studs toward release positions AG and BG which corresponds tothe Figi 9 -position of shaft 28 and with the position of parts shown in Fig. 12, wherein portion 6I rests against portion 56 andthe latter rests against portion 64. Thus pressure between the rolls is released.

To reset the mechanism, handle 2| is rotated counter-clockwise toward position H. thus rotating portion 66 to engage and force portion 6I and studs 60 into original position.

the handle is completed, that is, when portion 6| and studs 50 are replaced in self supporting position, handle 2l normally returns to position C in position for release movement to position E.v

The foregoing has described my invention,

modifications of structure and function are obviously possible without alteration of the principle invloved. i I do not wish to be limited in structure or function ecept within the scope of the appended claims.

What I claim is:

1. A roll wringer mechanism including in combination a lower frame, a detachable upper frame; a lower roll mounted for vertical movementin the lower frame, pressure `means normally forcing said roll upwardly, `an upper roll supported by the top frame in position to force the lower rolldownwardly when the top frame is held in position on the lower frame, means for releasably locking the upper frame on the lower frame comprising a. cam surfacel supported in each end of thelower frame, a shaft disposed crosswise of the top frame at each end thereof. each carrying a cam ccs-operative with one of said cam surfaces of the lower frame and mechanism in the uppery frame to rotate said cams to bring about locking relationship between said cam surfaces and cams to lock the lupper frame upon the lower frame. y

2. A roll wringer mechanism comprising a. lower frame, ,a separable top frame, a lower roll supported in the lower frame, an upper roll suping to move the top frame toward the lowerl frame and to hold the former in lowered position comprising .a bar disposed transversely of the top frame and mounted for rotation therein, means'. on the bar engaging, portions of the lower frame in such a manner that rotation of the bar brings about lowering movement of the top frame and finally locking it on the lower frame;4 a pinvlon on the bar, a rackemeshing said pinion movable longitudinally of the top. frame to cause rotation of the bar andmanual means for moving the rack. e

i NICHOLAS L. ETTEN. 

